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Side-by-side: what they do, what they cost, what Kai actually thinks. Pass up to 4 tools via ?tools=claude,chatgpt,gemini.
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OpenRouter
S
Gemini
A
Suno
S
Perplexity
S
TaglineOne API, every model. Pay-as-you-go, no subscriptions.Google's answer. Best integrated with Workspace + free for a lot.Prompt to full song with vocals, instruments, the works.AI search done right. Cited answers, not chat theater.
CategoryDev PlatformChatbotsAudioResearch
PricingPay per token — model-dependentFree + $20/mo Advanced (bundled with 2TB Drive)Free + $10/mo + $30/moFree + $20/mo Pro
Best forDevelopers experimenting across models. Apps that want fallback logic.Anyone already on Google, research tasks, summarizing long documents.Jingles, intros, demos, sketches, personal use.Replacing Google for any question where you want a cited answer in seconds.
Strengths
  • 300+ models from one endpoint
  • Automatic fallbacks between providers
  • No subscription — just pay what you use
  • Native Google Workspace integration
  • Very long context (1M+)
  • Deep Research feature
  • Free tier is generous
  • Real songs with real lyrics
  • v4 is very good
  • Quick turnaround
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
Weaknesses
  • Slight markup over direct API
  • Some provider features not exposed
  • Writing quality trails Claude
  • Over-refusals on edge content
  • UI is cluttered
  • Copyright gray zone
  • Audio quality behind studio
  • Not a general chatbot
  • Answers can be shallow on complex topics
Kai's verdictS-tier for model-shopping. I use this for every prototype before committing.A-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google.S-tier in its category. The first AI music tool I'd actually listen to.S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.
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